Module agency 

Agent Development Kit (Agency) - Rust Implementation

A Rust-native framework for building, orchestrating, and deploying AI agents. Inspired by multi-agent patterns but built from scratch for performance and control.

Key Features

• Code-First Development: Define agents and tools in Rust for type safety and performance
• Modular Architecture: Compose agents into hierarchies (sequential, parallel, loop)
• Tool Ecosystem: Built-in tools + custom function registration
• Multi-Model Support: Works with any LLM provider (Gemini, OpenAI, Anthropic, local)
• Session Management: Persistent conversation state with SQLite backend
• Streaming Support: Real-time response streaming via SSE

Example

use csm::Agency::{Agent, AgentBuilder, Tool, Runtime};

let search_agent = AgentBuilder::new("researcher")
    .model("gemini-2.5-flash")
    .instruction("You are a helpful research assistant.")
    .tool(Tool::web_search())
    .build();

let runtime = Runtime::new();
let result = runtime.run(&search_agent, "What is quantum computing?").await?;

Re-exports

pub use agent::Agent;

pub use agent::AgentBuilder;

pub use agent::AgentConfig;

pub use agent::AgentRole;

pub use agent::AgentStatus;

pub use error::AgencyError;

pub use executor::ExecutionContext;

pub use executor::ExecutionResult;

pub use executor::Executor;

pub use memory::AgentCache;

pub use memory::CacheEntry;

pub use memory::ChunkingConfig;

pub use memory::ChunkingStrategy;

pub use memory::ContextSegment;

pub use memory::ContextSegmentType;

pub use memory::ContextWindow;

pub use memory::Document;

pub use memory::DocumentChunk;

pub use memory::DocumentType;

pub use memory::Embedding;

pub use memory::EmbeddingModel;

pub use memory::EmbeddingProvider;

pub use memory::KnowledgeBase;

pub use memory::MemoryConfig;

pub use memory::MemoryEntry;

pub use memory::MemoryError;

pub use memory::MemoryManager;

pub use memory::MemorySource;

pub use memory::MemoryStats;

pub use memory::MemoryType;

pub use memory::SearchResult;

pub use memory::SimilarityMetric;

pub use memory::VectorStore;

pub use memory::VectorStoreConfig;

pub use memory::VectorStoreStats;

pub use modality::vla_models;

pub use modality::vlm_models;

pub use modality::ActionCommand;

pub use modality::ActionParameters;

pub use modality::ActionType;

pub use modality::AudioContent;

pub use modality::AudioData;

pub use modality::BoundingBoxRegion;

pub use modality::ContentPart;

pub use modality::ImageContent;

pub use modality::ImageData;

pub use modality::ImageDetail;

pub use modality::ImageFormat;

pub use modality::Modality;

pub use modality::ModalityCapabilities;

pub use modality::ModelCategory;

pub use modality::MultimodalMessage;

pub use modality::MultimodalModel;

pub use modality::SensorData;

pub use modality::SensorType;

pub use modality::SensorValues;

pub use modality::VideoContent;

pub use modality::VideoData;

pub use modality::Waypoint;

pub use models::AgencyEvent;

pub use models::AgencyMessage;

pub use models::EventType;

pub use models::ToolCall;

pub use models::ToolResult;

pub use orchestrator::OrchestrationType;

pub use orchestrator::Orchestrator;

pub use orchestrator::Pipeline;

pub use orchestrator::Swarm;

pub use proactive::business_agent_config;

pub use proactive::household_agent_config;

pub use proactive::ActionRisk;

pub use proactive::ActionStatus;

pub use proactive::DetectedProblem;

pub use proactive::PermissionLevel;

pub use proactive::ProactiveAction;

pub use proactive::ProactiveAgentConfig;

pub use proactive::ProactiveMonitor;

pub use proactive::ProblemCategory;

pub use proactive::ProblemSeverity;

pub use proactive::ProblemStatus;

pub use remote::generate_node_id;

pub use remote::generate_task_id;

pub use remote::ArtifactType;

pub use remote::GpuInfo;

pub use remote::HardwareInfo;

pub use remote::LogLevel;

pub use remote::MonitorStats;

pub use remote::NodeId;

pub use remote::NodeStatus;

pub use remote::RemoteAgentClient;

pub use remote::RemoteEvent;

pub use remote::RemoteMonitor;

pub use remote::RemoteMonitorConfig;

pub use remote::RemoteMonitorError;

pub use remote::RemoteNode;

pub use remote::RemoteTask;

pub use remote::RemoteTaskBuilder;

pub use remote::RemoteTaskId;

pub use remote::RemoteTaskStatus;

pub use remote::ResourceUsage;

pub use remote::TaskArtifact;

pub use remote::TaskLogEntry;

pub use remote::TaskMetrics;

pub use remote::TaskPriority;

pub use remote::TaskResult;

pub use runtime::Runtime;

pub use runtime::RuntimeConfig;

pub use session::Session;

pub use session::SessionManager;

pub use session::SessionState;

pub use tools::BuiltinTools;

pub use tools::Tool;

pub use tools::ToolBuilder;

pub use tools::ToolRegistry;

Modules

agent

Agent Definition and Builder

error

Agency Error types

executor

Agent Execution

memory

Memory and RAG (Retrieval-Augmented Generation) System

modality

Model Modality Support

models

Agency Data Models

orchestrator

Multi-Agent Orchestration

proactive

Proactive Agent System

remote

Remote Agent Monitoring System

runtime

Agency Runtime

session

Session Management

tools

Tool System